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VAMSI DANDA

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Electronics hobbyists enjoy playing with the projects.some people start a garage at home. For making any new invention you don't need any big laboratory. you can make your home a LAB.to work you just need a "multimeter". I have been working on some projects.At the beginning stage i made so many disasters in my room.I blasted so many components(one day i burnt my bed).what ever we do we enjoy that.So i just wanted to share some of my work with you.

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Wednesday, 26 February 2014

When there is a need of long range two way communications in hobby electronics most of the people prefer "ZIGbee" modules. there are several zigbee modules available in the market...with several ranges and qualities..

Tarang F4 is also a similar module.....

So let's see how to use these modules for normal full duplex serial communication with UART:

This module can be easily interfaced with any 8 bit microcontroller with all standard baud-rates between 1200 to 115200.

Each module consists of a 16 bit address. So user must provide a source address and destination address while configuring the module. which means only the destination module with matched address can only receive the data.

User can select the RF channels among 16 channels with addresses from 0x00 to 0x0F. The modules must be in same channel to establish the communication between them.

lets check the pin configuration of this module.

Tarang module works on 3.3v power supply. so sufficient voltage regulator must be used.

WORKING PROCESS:

By default the tarang F4 module: works at baud-rate of : 9600

source address : 0x1000 (hexadecimal)

destination address : 0x1000

RF channel : 0x00

it means :

"by default any tarang F4 module can communicate with any other module".

So tarang modules can be directly interfaced with microcontroller with baudrate of 9600. The connection circuit will be as follows.

NOTE: if your microcontroller is working at 3.3V then you can directly interface it to the microcontroller. if your microcontroller is working at 5V connect a resistor of 100ohms between TXD pin of MCU and Din pin of Tarang F4.

CONFIGURING THE MODULE:

For configuring the tarang F4 module first connect the module to PC serial Port. Now a days our laptops are not designed with serial ports directly. So we have to go for USB to Serial converters Like FT232, CP2102 or Prolific connectors.

Connect the module to PC using any above serial interface.

open "hyper terminal"(in xp) or use any similar software in case of Windows7 or 8 like "Tera Term".